Sometimes other methods are used to apply pressure to the catheter. Sometimes this involves weights, like a liter of fluids or even pulling or tugging on the catheter 2-4 times per hour.
The goal of this induction is to cause the cervix to mechanically open. Sometimes this will start labor spontaneously and sometimes it will simply make the cervix more favorable for a Pitocin, other drug induction or amniotomy (breaking the bag of waters).
You may have to have your baby's heart rate monitored before, during and just after the procedure to see if the baby tolerated this process, but this is very unlikely to cause fetal distress because it does not use drugs.